devencdiskutils/DevEncCommonUtils/src/DevEncMmcObserver.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 26 Jan 2010 15:20:08 +0200
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/*
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* Copyright (c) 2005 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description: 
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*              Implements a watcher for MMC disk change events.   
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*
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*
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*/
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#include <e32base.h>
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#include <f32file.h>
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#include "DevEncMmcObserver.h"
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EXPORT_C CMmcObserver* CMmcObserver::NewL( MMemoryCardObserver* aObserver,
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                                  RFs* aFileServerSession )
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    {
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    CMmcObserver* self = new(ELeave) CMmcObserver();
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    CleanupStack::PushL( self );
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    self->ConstructL( aObserver, aFileServerSession );
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    CleanupStack::Pop( self );
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    return self;
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    }
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void CMmcObserver::ConstructL( MMemoryCardObserver* aObserver,
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                               RFs* aFileServerSession )
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    {
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    iObserver = aObserver;
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    iFsSession = aFileServerSession;
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    CActiveScheduler::Add( this );
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    }
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CMmcObserver::CMmcObserver() : CActive( EPriorityIdle )
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    {
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    }
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CMmcObserver::~CMmcObserver()
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    {
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    Cancel();
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    }
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void CMmcObserver::DoCancel()
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    {
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    iFsSession->NotifyChangeCancel();
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    }
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void CMmcObserver::RunL()
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    {
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    //TRACES(RDebug::Print( _L("CMmcObserver::RunL status: %d"), iStatus.Int() ) );
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    iObserver->MMCStatusChangedL();
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    StartObserver();
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    }
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EXPORT_C void CMmcObserver::StartObserver()
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    {
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    //TRACES(RDebug::Print(_L("CMmcObserver::StartObserver")));
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    if ( IsActive() ) 
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        {
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        Cancel();
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        }
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    iFsSession->NotifyChange( ENotifyDisk, iStatus );
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    SetActive();
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    }
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// End of File